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No. 593,356. Patented Nov. 9,1897.

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H. VON KALINOWSKI. LASTING MACHINE.

No. 593,356. Patented Nov. 9,1897.

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H. VON KALINOWSKI.

LASTING MACHINE. No. 593,356. Patented Nov. 9, 1897.`

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UNITED STATES PATENT OEEICE.

HERMANN VON KALINOWSKI, OF BERLIN,'GERMANY.

LASTING-MACHINE.

SPECIFICATION forming partr of Letters Patent No. 593,356, dated November 9, 1897.

Application filed .Tune 5, 1896. Serial No. 594,430. (No model.)

To all whom it may concern:

Be it known that I, HERMANN voN KALI- NOWSKI, a subj ect of the King of Prussia, German Emperor, and a resident of Berlin, in the Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in Lasting-Machines, of which the following is an exact specication.

The lasting-machines ythat have become known to me up to now cannot well answer their purpose if the leather employed for the upper isv uncommonly thick or strong. This is generally the case with boots intended for military people, and in lasting the uppers for such boots the projecting rims of said uppers are drawn upon and over the lasts by aid of special pincers that are to be operated byhand. The pincers of the lasting-machines do not possess' a sufcient movableness to be able to adjust themselves to the different shapes of the various portions of a last, and they are therefore unable to effect a uniform stretch'- ing of the leather at every part of the same.

This applies also if a last for a boot for the right foot is exchanged for a last for the left foot. The pincers are generally unable to answer automatically to such an exchange, but must by hand be especially adjusted.

The purpose of my invention is to make a lasting-machine able to bend and stretch thick or strong leather as easily and securely as thin or light leather, and I attain that purpose by increasing the movableness of the pincers so much as to permit of their automatic adjustment to any shape of any portion of alast. According to this purpose the supports of the pincers are combined with a sort of universal joint in such a manner that they become partly independentof the mechanisms for moving them. I prefer to connect the several parts of said joints by springs the strength of which corresponds or may be adjusted so as to correspond to the limit of ductility or strength of the respective kind of leather. The movement of the pincers is then stopped and is transferred solely to said springs as soon as the limit of ductility or strength of the leather has been nearly reached. The leather is thus fully prevented from being injured or torn in spite of the compulsory operation of the pincers. Each of the latter is perfectly independent of all the others, and each will thus adjust itself scale.

to the last, even if the shape of the same is a somewhat abnormal one.

In order to make my invention more clear, I referto the accompanying drawings, in which similar letters denote similar parts throughout the different ligures, and in which- Figure 1, Sheet 1, is a side view of my improved lasting-machine, the frame and some parts of the mechanism being in section. Fig. 2, Sheet 2, is a front view of the machine, the frame, as well as some parts of the mechanism, being again in section. Fig. 3, Sheet 3, isa plan, the movable arm A, Figs. 1 and 2, and the parts carried by it being left away. Fig. 4, Sheet 3, is a diagrammatical View of the pincers in their various relative positions with regard to the rim of the upper and the insole. Fig. 5, Sheet 4, is a side View of one set .of

mechanisms as employed for operating one of the pincers. Fig. 6, Sheet 4, is a similar View, the part bs being in another position'. Fig. 7, Sheet et, is an enlarged side view of one of the pincers, together with a portion of the slide carrying the pincers. Fig. 8, Sheet 4, is a front view of the mechanisms shown in Fig. 7 or showing the latter regarded from the left. Fig. 9, Sheet 5, is a lportion of a vertical cross-section through the last, the upper and the insole drawn on an enlarged Fig. l0, Sheet 6, is a vertical longitudinal section through a device intended to replace, if desired, the three or more Vpincers situated opposite to the toe portion of the last. Fig. 11, Sheet 6, is a front view of the parts shown in Fig. 10, the lower portion, however,A of said figure being a section in line 19 20 of Fig. 10. Fig. 12, Sheet 5, is a view similar to Fig. l0, the left-hand portion of the latter being, however, left away and the parts of the other portion being in another position. Fig. 13, Sheet 5, is a view similar to Fig. 12, the upper portion being, however, turned to the left or rearward, respectively. Fig. 14, Sheet 6, shows on a greatly-enlarged scale a pair of tongues employed with thef device represented in Figs. 10 to 13. `Fig. 15, Sheet 5, is a similar view, the parts being in another position.

IOO

Fig. 16, Sheet 6, shows some parts of Figs. 10 and 12 drawn -on an enlarged scale. view of the same parts; and Fig. 18, Sheetr, is a horizontal section taken on line 21 22 of Fig. 17

Fig. 17, Sheet 6, is a front The upper part of the frame a is formed into or provided with two parallel pairs of guide-pieces?) b, Figs. l to 3, that con-tain or embrace a number of slides B. The frame,

a carries, further, an upwardly-extending curved arm A, that may be oscillated around a vertical axis. (Compare the position of the arm A shown in dotted lines in Fig. 3.) Said arm extends above the middle of the frame av and is at its upper end provided with a pivot serving as a bearing for a handle a. and an eccentric a2, Fig. 2. The parts 'a' a2 are firmlyy connected with each other. A vertical rod a3, guided by a suitable projection of the arm A, is connected with the strap of said eccentric and holds at its lower end an exchangeable press-plate a5, that is shaped to correspond to thejsole portion of 'the last. The plate a5, as well'as the rod a3, (or, more precisely, -the bolt connecting said rod to the strap of the eccentric 662,) holds a downwardly-extendin g arm a, Fig. 1, that terminates ina small plate. This plate serves to Vpress upon or to press down a table '0, that is provided with a 'U -shaped slide c6,arranged below said table. Said slide is 'vertically guided by a similarly-shaped frame c7, which in its turn is guided in horizout-al direction by ledges secured to the inner'ones of the guidepieces b b aforementioned. The upper ends of the two legs forming the combined guide-frame and slide c'I are connected by an arm cs, Fig. l, extending across the slide c6.

spindle c, that is held and secured against axial displacement by a suitable part of the frame a. The table C may thus be displaced in'a horizontal plane parallel to the Vguide-` pieces b b, 'and may further be vertically dis-` placed by the arm a4, or,'1nore precisely, by the handle a and the eccentric a2. A spring, c, held by the frame c7, tends constantly to brin gthe table c back into its original position.

The last Z after being furnished with the.v upper z and with the insole z', Fig. l, is-

placed with its toe portion upon a suitablyshaped support d and with its heel portion upon the top of avertical rod f. The support d isheldby avertical rod cl2, that is guided by a-n angular frame-piece cl3. Both rodsf and d2 are elastically supported bysprin gs clf. The rod f is held and guided by a piece of tube f4,

that is secured to the upper part of a hinge` fff. A spring f2, arranged between the horizontally-projecting parts of said hinge, tends constantly to move the rod f in the direction to the rod cl2, and the toe portion of the last is thus always'securely held against its support d irrespective ofthe size or length of the last.

The table C, which may be moved against Athe'heel portion of the last by the spindle e9,

(thelatter beingfu rnished with a hand-wheel c,) has a'recess c2, shaped according to said heel portion. The last may thus be fixed in position between the support d and the table C.

The slides B aforementioned carry hinge- -cers b3.

Said arm is provided with' a female thread and receives a threaded like bearings b', Fig. 2, the upper parts of which are formed into guides -for lslides b2, Figs. 2 to 8. Said slides b2 carry the pin- I call special attention to the fact that the pincers may be of any desired or suitable construction. My improved lastingmachine is not dependent on pincers of the construction shown. Each pair of pincers b3 is-secured to its slide b2 by the mediation of a joint Z210, Fig. 7, allowing of the pincers being turned in a vertical plane standingv rectangular to the plane of motion of the guide b. The pincers may further be moved in a horizontal plane around a screw b4, Fig. 7, taking into said joint-piece b1". The pincers are thus enabled-to assume every possible position, and they may thus be adjusted,

or, more precisely, automatically adj ust themselves, to any configuration of any part of `a last,.as has alreadybeen mentioned in the pre- .draw the pin aforementioned into the lowermost part of the slot of said lever. If, therefore, the lever B' is turned by any suitable means in such a direction thatthe slide b2,

with its pincers, moves in the direction to.

the last, (after the projecting rim of the up kper has been properly clamped into or by the pincers,) said projecting rim is drawn over the adjacent portion of the last and is placed in its whole extent upon the adjacent portion of the insole lying upon the last.

In consequence of the reacting force of the leather or of the rim of the upper, respectively, the pincersare drawn down upon the insole, and the spring gis thus expanded or strained in a corresponding degree. fgree of `the stretching of the rim of the `up- The deper is, as a matter of course, dependent not 'only on the extent ot' the movement of the lever B' or `of the slide b2, respectively, but

`on the strength of the spring g too, because `said spring contributes to the tension of the leather as soon as the pincers are drawn down upon the insole by said leather. The projecting rim of the upper turns, so to say, around a horizontal axis extending parallel to the upper lateral edges of the last, and the edge proper of said projecting rim, when approaching theinsole, moves in a sort of curve.

The full contact between the projecting rim of the upper and the adjacent portion ofthe `insole is aorded mainly by the dead-play given to the slide lf2-with regard to the lever B'.

The lower ends of the levers B are angularly bent. Each of the said ends is provided IIO with an inclined slot that serves for the reception of a horizontal rod D, Figs. 1 to 3. In the form of construction of the machine as shown said rod D is shaped similarly to a horseshoe, in consequence of the position of the slides b2 relative to each other, and is held by a bracket D', fixed to the upper end of a threaded spindle e4. The lower end of said spindle carries a cog-wheel e3, the nave of which reaches through the base-plate of the frame and is hindered from any axial displacement by means of the bipartite cap D2. If, therefore, the wheel e3 is rotated in one or the other direction, the spindle d4 will be raised or lowered, and the levers B will thus be oscillated to one or the other direction, so as to move the pincers b3 against or from the last. The rotation of the combined nut and cogwheel e3 is eected from they hand-wheel E, Fig. 2, by the mediation of the wheels e, e', and c2, as will be clear from said iigure without any further explanation.

Besides the eight or more ypincers that are supported by the slides B, Figs. 2 and 3, and that serve for drawing the projecting rim of the upper over the side portion of the last, there are three or more similar pincers situated upon a cross-beam b6 of the frame, opposite to the toe portion of the last. Said three or more pincers are also attached tol slides b2, and these latter are guided and operated in exactly the same manner as has been described with regard to the slides shpwn in Fig. 2. The slides B, however, are replaced by a sort of hinges B2, Fig. 1, that are attached to said cross-beam be. Y Said hinges may turn around vertical bolts, so that the slides h2, with their pincers h3, maybe adjusted or may adjust themselves according to the special configuration of the toe portion of the last.

To lay the projecting rim of the upper over the heel portion of the last, I make use of a known device, which I describe in this speciiication only for the sake of completeness. Said device consists of two clutches x, Figs. 3 and 4, that are fulcrumed by means of a common bolt to the table-C and are connected by links or rods to a lever c3, Fig. 3, that is likewise fulcrumed to said table. The clutches @c are situated nearV to the recess c2 of the table C and may be brought over said recess, as well as over the heel portion of the last, after said table has been moved against the last by the means aforedescribed. The table C is rst moved against the last, and the clutches 0c are then moved by the lever c3 against and upon the projecting rim of the upper, so as to press said rimv upon the heel portion of the last, as is clearly represented in Fig. 4.

Concerning the levers B' and the slides b2, with their pincers b3, attentionmust be called to the fact that (provided no last be placed in the machine or upon the supports d and the rod f, respectively) the extent of movement of the parts b', b2, and b3 will be the same, on account of all the levers being operated from one and the same part-z'. e., the horseshoe -shaped horizontal rod l D. This equal extent of movement of the several pincers is of no use for the practical application of the machine in that the various portions of the last which the projecting rim of the upper is to be drawn over are of very difterent size-that is to say, the various portions of the last possess or form curves of dierent radii and dierent lengths, and the projecting rim of the upper, although havingits edge lying originally in a horizontal plane, will take unequally over the various portions of the last, as may, for instance, be seen from Fig. 4.

' In order to enable the several pincers to make ways of different lengths or to move one independent of the other, I let the lower arm of each of the levers B' consist of two parts, the lower part bs, Figs. 1, 2, 5,' and 6, being connected to the upper part by means of a hinge 67. The lower part bs is subjected to the constant action of a flat spring b9, that is secured to the upper arm of the lever B'. The strength of each of said springs b9 is such that the projecting rim of the upper may be properly and sufficiently drawn over the last or over the insole, respectively, but cannot be torn if the bracket D' or the rod D moves still more downward. 'In this jcase the part 58 of the lower arm of the lever B is moved separatel y ina direction opposite to the direction of action of the spring b9. It is thus clear that each of the pincers will vcease moving as;v

soon as the proper straining of the projecting rim of the upper has been reached and will not in any way hinder the other pincers from moving'farther until the proper straining of the portions of the leather'operated by said respective pincers has been eected.

The three or more pincers for drawing the projecting rim of the upper overthetoe portion of the last may well be replaced by the device represented in Figs. 10 to 18, Sheets and 6. (See the short description of the figures.) In said device I make use of a special sort of pincers-that is to say, of but one pincerswhich is provided with a pair of curved clamps having a coniguration corresponding to that of the toe'portion of the last. portion of the projecting rim of the upper is thus spanned as Va'whole, which does completely away with the arising of folds at said portion. It is, moreover, desirable to span The respective IOD IIO

or strain said portion of the projecting rim of the upper perfectly independent of the other portions, and this independent operation may well be attained by the vdevice in question. The latter is constructed as follows The pincers F, Figs. 10 to 12 and 16 to 18, consist of a stationary clamp that is iixed to the lower end of a vertical rod h, Figs. 10, 12, and 13, and of a movable clamp that is coupled to a cam h3 by the mediation of an arm F', Figs. 16 and 17. The middle portion ofsaid rod h is formed into a bearing for the axle of the cam hand this latter may be turned for one hundred and eighty degrees by means of i a lever or handle h5', Figs. 10 to 12, iiXed to said axle. h', Figs. 10V to 12, and is supported from the upper of said plates by means of a spring h2.

If, therefore, the rim z, Fig. 9, ofthe upper is i clamped inv between the clamps of the pincers F, Fig. 10, and if then the last Z, lying within the upper, is pressed against and upon the support d, Figs. 1,. 10, and 1:2, by means of v the table C, Fig. 1, and if, further, said last is depressed by the plate a5, Fig. 1, then the pincers F, together with the rod h, may yield in a downward direction and the position of the parts shown in Fig. 10 will become that shown in Fig. 12. Theupperis thus spanned i orv stretched over the toe portion of the last and is now to be drawn over the adjacent' portion; of the insole z'. To effect this, I make use of vtwo plates i, Figs. 14 and 15, that are arranged like the blades of a pair of scissors and are fulcrumed to a common bolt i3. The latter is secured to the support d for the toe portion of the last, and the plates 't' are thus held by said support. To operate the said plates, I have arranged upon the frame portion b a guide-piece R, Figs. 10 and l11, holding a slide R. with two pairs of diverging arms R2, to which are hinged twopairs of links i. links on each side are connected at their free ends by bolts 115, and the plates t aforementioned are coupled to said bolts by ears i, Figs. 12 and 13, in such a manner that the vsupport d, with the plates z', may be depressed without causing a similar depression of the links i. The plates i may therefore be moved against the projecting rim of the upper or may draw the latter upon the insole, respectively, at every position of the last, as will become perfectly clearby comparing Fig.

l 10 with Figs. 12 and 13.

The two plates h aforementioned are formedinto a quadrangular frame by means of rods h6, and said frame is pivotally connected to supports h4, fixed to a suitable part of the main frame of themachine. The frame h h6 h h6 is hindered from turning in the direction to the last by suitably-arranged pins, but may be turned by hand in opposite direction after the projecting rim of the upper has been drawn over the adjacent rim of the insole z' by the plates 1l. (Compare Fig. 13.) The latter are then in the position shown in Fig. 15,'and said projecting rim may now be secured to the insole by tacks, pegs, or any other suitable means.

To hinder the support d from being moved downward by the last Z being pressed against.

shown in full lines, the hook k takes into the A recess of the rod d2 and causes the latter to The rod h is held by horizontal plates i my invention, what I desire to secure by Let ters Patent of the United States is- This slide is provided y The two remain stationary during the time of stretching the leather by the movement of the last Z in the direction to the slide R'. l

Having thus fully described the nature of l. In a lasting-machine having its pincers secured to slides adapted to be displaced, as well as to swing, in the direction to the last,

the combination with said slides,'of an equally great'number of levers connected each with lost motion tooneof said slides; springs tending to keep yeach lever in gear with its respective slide, and means for operating said levers all at a time, for the purpose as de' scribed.

2. In a lasting-machine having its pincel-s Vwell as to swing, in the direction to the last, the combination with said slides, of an equally great number of levers connected each to-one of said slides; means for operating said levers all at a time, and springs adapted to coperate with the levers in transmitting the driving power to the slides, for the purpose as described.

3. In a lasting-machine having its pincers secured to slides adapted to be displaced, as well as to swing, in the direction to the last, the combination with said slides, of an equally great number of double-armed levers connected each to one of said slides; one arm of each lever consisting of two' parts hinged toi gether; a spring adapted to transmit the movements of one part to the other part of the lever, and means for operating said levers all at a time, for the purpose as described.

4. In a lasting-machine having its pincers secured to slides adapted to be displaced, as well as to swing, in the direction to the last, the combination with said slides, of an equally great number of levers connected each with dead-play to one of said slides, and havin v each one arm com-posed of two parts'hin together; springs secured each to one of said parts, and adapted totran smit the movements of the latter to the other parts of said levers;

other springs'tending to keep each lever in gear with its respective slide, and means for operating the said levers all at a time, for the l purpose as described. i

5. In a lasting-machine having its side pincers secured to slides adapted to be displacedz as well as to swing, in the direction to the msiy last, the combination ywith said slides, of an equally great number of levers connected each to one of said slides, and means for op- Y erating said levers all ata time; a special toe-pincers consisting of two vertical jaws arranged one in front of the other, and being each curved according to the configuration of 1 the toe part of the last; the jaw situated nearest to the last being hinged to the other jaw,

and both jaws being yieldable in a vertical` direction; means for pressing the hinged jaw against the other one, for the purpose as .de

scribed.

6. In a lasting-machine having its si de pincers secured to slides adapted to be displaced, as well as to swing, in the direction to the last, the combination with said slides, of an equally great number of levers connected each to one of said slides, and means for op# eratin g said levers all at a time; a special toe-pincers consisting of two vertical jaws arranged one in front of the other, and being each curved according to the configuration of the toe part of the last; the jaw situated nearest to the last being hinged to the other jaw, and the latter being secured to an automatic- HERMANN VON KALINOWSKI.

Witnesses W. HAUPT, HENRY HARPER. 

